  /*
   * ====================================================================
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
  *
  *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
  * ====================================================================
  *
  * This software consists of voluntary contributions made by many
  * individuals on behalf of the Apache Software Foundation.  For more
  * information on the Apache Software Foundation, please see
  * <http://www.apache.org/>.
  *
  */

package com.rchik.divermate;

import org.apache.http.entity.mime.content.*;
 
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 
 import org.apache.http.entity.mime.MIME;

 public class FileBody extends AbstractContentBody {
 
     private final File file;
     private final String filename;
     private final String charset;

    
     public FileBody(final File file,
                     final String filename,
                     final String mimeType,
                     final String charset) {
         super(mimeType);
         if (file == null) {
             throw new IllegalArgumentException("File may not be null");
         }
         this.file = file;
         if (filename != null)
             this.filename = filename;
         else
             this.filename = file.getName();
         this.charset = charset;
     }
   
     public FileBody(final File file,
                     final String mimeType,
                     final String charset) {
         this(file, null, mimeType, charset);
     }
 
     public FileBody(final File file, final String mimeType) {
         this(file, mimeType, null);
     }
 
     public FileBody(final File file) {
         this(file, "application/octet-stream");
     }
 
     public InputStream getInputStream() throws IOException {
         return new FileInputStream(this.file);
     }
   
     @Deprecated
     public void writeTo(final OutputStream out, int mode) throws IOException {
         writeTo(out);
     }
 
     public void writeTo(final OutputStream out) throws IOException {
         if (out == null) {
             throw new IllegalArgumentException("Output stream may not be null");
         }
        InputStream in = new FileInputStream(this.file);
        try {
            byte[] tmp = new byte[4096];
            int l;
            while ((l = in.read(tmp)) != -1) {
                out.write(tmp, 0, l);
            }
            out.flush();
        } finally {
            in.close();
        }
    }

    public String getTransferEncoding() {
        return MIME.ENC_BINARY;
    }

    public String getCharset() {
        return charset;
    }

    public long getContentLength() {
        return this.file.length();
    }

    public String getFilename() {
        return '@'+filename;
    }

    public File getFile() {
        return this.file;
    }
}